BASSAT, Monsieur Alexandre (2023) Differential approximation of the Hasegawa-Wakatani equations PRE - Research Project, ENSTA.

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Abstract

Nuclear fusion (or thermonuclear fusion) is a process in which light atomic nuclei come together to form a heavier nucleus. This process releases a large amount of energy per unit mass, due to the attraction between nucleons caused by the strong interaction. It represents a new opportunity to develop a new source of energy, with a lower risk than fission power plants. But before such a project can be launched, a number of questions need to be answered : how can a plasma be maintained at several thousand degrees ? How can we prevent it from cooling at the edges of the tokamak ? Will we see the appearance of non-linear phenomena due to the presence of a strong magnetic field ? The study of turbulence and the transport induced by fusion in tokamaks is a major focus of research and is at the heart of the "Magnetic Fusion Plasmas" team at the Plasma Physics Laboratory. We have approximated the non-linear terms for the Hasegawa-Wakatani and Hasegawa-Mima equations using different models and approaches. In the Hasegawa-Mima framework, a result on the energy spectrum has been established.

Item Type:Thesis (PRE - Research Project)
Uncontrolled Keywords:Hasegawa-Wakatani, Hasegawa-Mima, differential approximation, i-delta model, diagonalization, turbulence, energy spectrum, magnetic fusion
Subjects:Fluid Mechanics and Energy
Physics, Optics
ID Code:9631
Deposited By:Alexandre BASSAT
Deposited On:28 août 2023 10:28
Dernière modification:28 août 2023 10:28

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